Open AccessThe study of long-term fluctuations in the dates of ice formation and ice destruction in the rivers of the Votkinsk reservoir catchment
Author(s) -
V. G. Kalinin,
V. V. Chichagov
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/321/1/012028
Subject(s) - drainage basin , series (stratigraphy) , geology , randomness , autocorrelation , hydrology (agriculture) , physical geography , geography , paleontology , geotechnical engineering , statistics , mathematics , cartography
A statistical analysis of the dates of ice formation and ice destruction in the rivers of the Votkinsk reservoir catchment was carried out, including testing the hypothesis of randomness for both the full series of observations and their parts; autocorrelation diagnostics of the time series; verification of the homogeneity hypothesis of the series of observations and the aggregate index. The results indicate that there are statistically significant changes in the ice formation and ice destruction dates occurring in recent years in the rivers of the Votkinsk reservoir catchment.